TWA Flight 891

On 26 June 1959, TWA Flight 891 departed Malpensa Airport in Milan, Italy with a crew of 9 and 59 passengers on board. The flight had originated in Athens, Greece, and had stopped in Rome before flying on to Milan.[2] The subsequent leg of the flight destination was to Paris' Orly Airport. When Flight 891 departed Milan, light rain was falling with a low overcast and a ceiling of around 2,000 feet, with visibility of approximately two miles (3.2 km). There were also thunderstorms in the area.[3]

Twelve minutes after takeoff, the flight crew reported the aircraft was climbing through 10,000 feet. A few minutes after that, the Starliner suffered structural failure and broke up in mid-air. Everyone on board was killed.[2]

Flight 891 was the first fatal aviation accident involving a Lockheed Starliner.[4] In terms of loss of life, it was also the worst air crash of 1959.[5]

On 24 November 1960, an Italian inquiry board announced its finding that a lightning strike had brought down Flight 891.[6] "The breaking-up in flight was due to the explosion of the fuel vapors contained in tank #7, followed immediately by either an explosion of pressure or a further explosion in tank #6. In the absence of other significant concrete evidence, taking into account the stormy weather conditions, with frequent electric discharges, existing in the area at the time of the crash, it may be assumed that the explosion of the fuel vapors contained in tank #7 was set off, through the outlet pipes, by igniting of the gasoline vapors issuing from these pipes as a consequence of static electricity discharges (streamer corona) which developed on the vent outlets."[7]

• Pan Am Flight 214, another crash caused by lightning

• TWA Flight 891 at Airdisaster.com
• Website dedicated to the plane crash of Olgiate Olona of June 26, 1959 (TWA Flight 891).